Earlier today, I left my laptop running with two browsers open and possibly a game running in the background. I was away for around 30 minutes, and when I returned, I found the laptop in this state.
The display was completely off. To clarify, I don't mean the screen was illuminated but showing a black image. The display itself wasn't lighting up at all. I couldn't see an ASUS logo, a faint backlight, or anything else.
The laptop had apparently been running before the incident. It usually gets quite hot during use, but I wasn't present when this happened, so I don't know whether it overheated or what exactly triggered the problem.
What happened afterward:
Initially, I tried forcing the laptop to shut down by holding the power button. However, I noticed some unusual behavior.
1) After shutting it down, it would sometimes turn itself back on without me pressing the power button.
2) When it powered on, the keyboard backlight and other indicators illuminated, but the display remained completely off.
3) It would sometimes shut down automatically after approximately a minute, with all the lights going off, including the charging indicator even though the charger was still connected.
4) Sometimes, it would turn itself back on again shortly afterward.
5)The fans produced only a faint noise rather than their usual sound.
6)The charging indicator initially showed white but later changed to red/orange. At one point, it also went completely off during a shutdown.
7)Eventually, the laptop stayed completely off for a couple of minutes. After I reconnected the charger, the charging indicator came back on.
8)I tried starting it again, but the same behavior continued: the laptop powered on, the display remained completely off, and the laptop eventually shut down and restarted automatically.
What I've tried so far:
1) Held the power button for approximately 15–20 seconds to force a shutdown.
2) Disconnected the charger and peripherals.
3) Held the power button for approximately 40 seconds with the charger disconnected.
4) Reconnected the charger and attempted to start the laptop, waiting around two minutes.
5) Disconnected and reconnected the charger after the laptop had shut down completely.
6) Left the laptop resting for approximately an hour to cool down.
7) Attempted Windows graphics-driver reset shortcut but nothing happened.
8) I haven't opened the laptop or disconnected its internal battery. I also haven't attempted a BIOS recovery or Windows reinstallation.
What could be causing this?
I'm wondering whether this could be a motherboard or power-delivery issue, an embedded-controller or BIOS problem, a RAM initialization failure, or something related to the GPU.
I'm also unsure whether it's worth trying the or whether that would be pointless given that the display never lights up and the laptop keeps shutting down and restarting.
I'd appreciate advice on the following:
Is there anything else I can safely try at home, or should I stop troubleshooting and take it to a repair shop?
What should a technician test first before recommending an expensive motherboard replacement?
Has anyone experienced a similar issue with the same laptop?
I'm trying to avoid making the problem worse by repeatedly attempting random fixes.
Laptop: ASUS TUF Gaming A16 Advantage edition
Exact model number: FA617 series
CPU/GPU configuration: AMD Ryzen 7 7735HS / AMD Raedon RX 7600S 8GB GDDR6
Ram: 16GB DDR5 4800MHz
Age: 2.5 years
Warranty status: expired
Thanks for any help.